Lithographic apparatus, device manufacturing method, and device manufactured thereby
First Claim
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1. A lithographic projection apparatus comprising:
- a radiation system configured to provide a pulsed beam of radiation;
a programmable patterning structure configured to pattern the pulsed beam according to a desired pattern;
a projection system configured to project the patterned beam onto a target portion of a substrate;
a positioning structure configured to move the substrate relative to the projection system during exposure by the patterned beam; and
an optical structure configured to move the projected beam relative to the projection system during at least one pulse of the pulsed beam such that the projected beam is shifted in synchronism with the movement of the substrate during said at least one pulse.
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Abstract
Apparatus and methods for compensating for the movement of a substrate in a lithographic apparatus during a pulse of radiation include providing an optical structure configured to move a patterned projection beam incident on the substrate in synchronism with the substrate.
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Citations
21 Claims
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1. A lithographic projection apparatus comprising:
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a radiation system configured to provide a pulsed beam of radiation; a programmable patterning structure configured to pattern the pulsed beam according to a desired pattern; a projection system configured to project the patterned beam onto a target portion of a substrate; a positioning structure configured to move the substrate relative to the projection system during exposure by the patterned beam; and an optical structure configured to move the projected beam relative to the projection system during at least one pulse of the pulsed beam such that the projected beam is shifted in synchronism with the movement of the substrate during said at least one pulse. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device manufacturing method, said method comprising:
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using a radiation system to provide a pulsed beam of radiation; using a patterning structure to pattern the pulsed beam according to a desired pattern; projecting the patterned beam onto a target portion of a layer of radiation-sensitive material that at least partially covers a substrate; moving the substrate relative to the projection system during exposure by the patterned beam; and moving the projected beam relative to the projection system during at least one pulse of the pulsed beam such that the projected beam is shifted in synchronism with the movement of the substrate during said at least one pulse.
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14. A lithographic projection apparatus comprising:
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a radiation system configured to provide a pulsed beam of radiation; a programmable patterning structure configured to pattern the pulsed beam according to a desired pattern; a projection system configured to project the patterned beam onto a target portion of a substrate; a positioning structure configured to move the substrate relative to the projection system during exposure by the patterned beam; and an optical structure configured to alter a path of the projected beam relative to the projection system during at least one pulse of the pulsed beam such that a cross-section of the projected beam in a plane parallel to a surface of the target portion is shifted in synchronism with the movement of the substrate during said at least one pulse. - View Dependent Claims (15, 16, 17, 18)
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19. A device manufacturing method, said method comprising:
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using a radiation system to provide a pulsed beam of radiation; using a patterning structure to pattern the pulsed beam according to a desired pattern; projecting the patterned beam onto a target portion of a layer of radiation-sensitive material that at least partially covers a substrate; moving the substrate relative to the projection system during exposure by the patterned beam; and altering a path of the projected beam relative to the projection system during at least one pulse of the pulsed beam such that a cross-section of the projected beam in a plane parallel to a surface of the target portion is shifted in synchronism with the movement of the substrate during said at least one pulse. - View Dependent Claims (20, 21)
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Specification